Influence of Different Backpack Loading Conditions on Neck and Lumbar Muscles Activity of Elementary School Children
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 14
- 主要终点
- Muscle Activity as a Measure of Route Mean Square
研究概览
简要总结
The purpose of the present study is to analyze the influence of four backpack loading conditions (0, 10, 15 and 20% of body weight) on the electromyographic activity of the neck and lumbar muscles of elementary school children.
详细描述
Elementary school children participated in the present study, between the ages of 6 and 10. Bilateral sternocleidomastoid, rectus abdominis and erector spinae muscles activity were recorded using surface electromyography (sEMG), while tested for the effect of four randomized backpack loading conditions.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 6 Years 至 10 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •children with tutor consent
排除标准
- •children with cognitive impairment
研究组 & 干预措施
Healthy school children
elementary school children will be presented with different backpack loading conditions
干预措施: loading conditions (Other)
结局指标
主要结局
Muscle Activity as a Measure of Route Mean Square
时间窗: one year
EMG signals were initially filtered with a Notch Filter of 50hz, due to the DC power line, using MATLAB 7.11 (v.2010). The signal was then detrended, converted into millivolts and normalized. the normalized signal was then used to calculate the route mean square.
次要结局
未报告次要终点
研究者
Sandra Rodrigues
Lecturer
University Fernando Pessoa